Gronnemark, whose been working in his role for 15 years at the likes of AC Horsens and FC Midtjylland, has since been asked about Gray’s comments.

But the Liverpool coach is happy to have raised debate and opened up about his job.

Gronnemark told Training Ground Guru: “I have no problem with what he [Andy Gray] said, because everyone is entitled to their opinion and debate is good but perhaps he could be a little more curious.

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Liverpool news: The Reds have been working specifically on their throw-ins in training

“On average, there are 40 to 50 throw ins per game”

Thomas Gronnemark

“On average, there are 40 to 50 throw ins per game. In fact when Liverpool played Brighton on Saturday, they had 54. That’s about 12 minutes per game taken up by throw-ins and situations arising from them.

“On average, they lose the ball more than half the time from under-pressure throw-ins, when their team-mates are closely marked.

“Have you noticed that the commentators never mention a bad throw-in during a game? I think it’s because there are so many and their expectations are very low. It becomes so they barely notice.”

Discussing his work at Melwood, Gronnemark added: “Some weeks we do two or three sessions, some weeks none at all.

Jurgen Klopp has been delighted with how Liverpool have done so far this season

"I also analyse their throw-ins from every game and feed back to them, whether I'm there or not.”

Describing his coaching, he said: “Long, because players are improving the distance of their throws by 15 metres; fast, because of the counter-attacking opportunities; clever because you’re keeping possession of the ball.”

The Reds have started the new season in terrific form, with Gronnemark’s contribution making an early impression.

Klopp said of Gronnemark on Friday: “When I met him, it was 100% clear I wanted to employ him.

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Liverpool players have been enjoying working on their throw-ins

"You cannot have enough specialists around you. I must always be the guy who makes the decisions on when we use them, but you cannot have enough.

“Already [he has made a difference], it’s good, the boys like it. Somebody who knows what he is talking about, it always helps when you want to improve something.”

Liverpool have conceded just once in four Premier League games and have a 100 per cent record.

West Ham, Crystal Palace, Brighton and Leicester have all been swept aside by Klopp’s men.

After the international break, some real tests awaits the Reds, though, as they travel to Wembley to take on Tottenham on September 15 before hosting PSG in the Champions League three days later.